Finding the Fourth Proportional to 118,731.89, 163,843.89 and 65,006.51

Step by Step Solution

1. Step 1: Write the proportion equation
   118,731.89 : 163,843.89 = 65,006.51 : x
2. Step 2: Convert to fraction form
   118,731.89/163,843.89 = 65,006.51/x
3. Step 3: Cross multiply
   118,731.89x = 163,843.89 × 65,006.51
4. Step 4: Simplify right side
   118,731.89x = 10,650,919,473.72
5. Step 5: Solve for x
   x = 10,650,919,473.72/118,731.89
6. Step 6: Final answer
   x = 89,705.63